| abstract |
PCT No. PCT/GB90/01803 Sec. 371 Date Jul. 7, 1992 Sec. 102(e) Date Jul. 7, 1992 PCT Filed Nov. 22, 1990 PCT Pub. No. WO91/07949 PCT Pub. Date Jun. 13, 1991.Delayed release compositions comprising an active compound and amorphous amylose and having an outer coating comprising a film forming cellulose or acrylic polymer material, for example glassy amylose are of particular value for the selective release of medicaments and diagnostic agents into the colon. |